Answered: A running coach wanted to see whether…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A running coach wanted to see whether runners ran faster after eating spaghetti the night before. A group of six runners was randomly chosen for this study. Each ran a 5 kilometer race after having a normal dinner the night before, and then a week later, reran the same race after having a spaghetti dinner the night before. The times for their races are shown in the table below. What test statistic should be used in a test for these samples?

	Runner 1	Runner 2	Runner 3	Runner 4	Runner 5	Runner 6
Regular Dinner	1019 s	1004 s	1028 s	989 s	1035 s	1015 s
Spaghetti Dinner	1012 s	999 s	1025 s	988 s	1036 s	1018 s

Group of answer choices

-2.45

2.45

±1.31

1.31

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